enable the CONFIG_MALI_MIDGARD_FOR_LINUX config and fixed kernel panic after enable this feature

jamess-huang · jamess-huang · commit 7c5c2657606b · 2017-08-16T11:15:07.000+08:00
Change-Id: I44b6aa9cfd154ff9b6803b7c33c4c83b81b394ae
Reviewed-on: https://tp-biosrd-v02/gerrit/80173
Reviewed-by: Jamess Huang(黃以民) &lt;Jamess_Huang@asus.com&gt;
Tested-by: Jamess Huang(黃以民) &lt;Jamess_Huang@asus.com&gt;
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
@@ -1563,6 +1563,9 @@
 		upthreshold = <75>;
 		downdifferential = <10>;
 
+		cpu-limit-freq = <1416000>;
+		gpu-limit-freq = <600000>;
+
 		gpu_power_model: power_model {
 			compatible = "arm,mali-simple-power-model";
 			voltage = <950>;
diff --git a/arch/arm/configs/miniarm-rk3288_defconfig b/arch/arm/configs/miniarm-rk3288_defconfig
@@ -518,6 +518,7 @@ CONFIG_DRM_PANEL_TOSHIBA_TC358762=y
 CONFIG_DRM_DW_HDMI_I2S_AUDIO=y
 CONFIG_MALI_MIDGARD=y
 CONFIG_MALI_DEVFREQ=y
+CONFIG_MALI_MIDGARD_FOR_LINUX=y
 CONFIG_MALI_EXPERT=y
 CONFIG_MALI_PLATFORM_THIRDPARTY=y
 CONFIG_MALI_PLATFORM_THIRDPARTY_NAME="rk"
diff --git a/drivers/gpu/arm/midgard_for_linux/mali_kbase_core_linux.c b/drivers/gpu/arm/midgard_for_linux/mali_kbase_core_linux.c
@@ -3026,6 +3026,9 @@ static int power_control_init(struct platform_device *pdev)
 			goto fail;
 		}
 	}
+	kbdev->freq = 0;
+	mutex_init(&kbdev->mutex_for_clk);
+	kbdev->is_power_off = false;
 
 #if defined(CONFIG_OF) && defined(CONFIG_PM_OPP)
 	/* Register the OPPs if they are available in device tree */

Original file line number	Diff line number	Diff line change
`@@ -3026,6 +3026,9 @@ static int power_control_init(struct platform_device *pdev)`
`3026`	`3026`	`goto fail;`
`3027`	`3027`	`}`
`3028`	`3028`	`}`
	`3029`	`+ kbdev->freq = 0;`
	`3030`	`+ mutex_init(&kbdev->mutex_for_clk);`
	`3031`	`+ kbdev->is_power_off = false;`
`3029`	`3032`
`3030`	`3033`	`#if defined(CONFIG_OF) && defined(CONFIG_PM_OPP)`
`3031`	`3034`	`/* Register the OPPs if they are available in device tree */`